<template>
	<view>
		<!-- 支付组件 -->
		<lyy-pass-input ref="passInput" title="商品支付" :money="totalPrice" @confirm="confirm" @close="close">
		</lyy-pass-input>

		<view class="goods-section">
			<!-- 商品列表 -->
			<view class="g-item" v-for="item in mycart" :key="item.id">
				<image :src="item.picture"></image>
				<view class="right">
					<text class="title clamp">{{ item.goodname }}</text>
					<view class="price-box">
						<text class="price">价格:￥{{ item.price }}</text>
						<text class="number">数量:{{ item.buynumber }}</text>
					</view>
				</view>
			</view>
		</view>

		<!-- 购物袋 -->
		<view class="yt-list">

			<view class="yt-list-cell b-b">
				<text class="cell-tit clamp">选择购物袋</text>
				<view class="cell-tip">
					<view class="uni-padding-wrap uni-common-mt" v-for="(item, index) in items" :key="index">
						<view style="display: flex;">
							<text>{{ item.text }}</text>
							<uni-number-box type="number" class="step" :min="0" v-model="item.num"
								@change="numberChange(index, $event)" v-if="item.num >= 0">
							</uni-number-box>
						</view>
					</view>
				</view>
			</view>



		</view>

		<!-- 底部 -->
		<view class="footer" v-show="isShow">
			<view class="price-content">
				<text>实付款</text>
				<text class="price-tip">￥</text>
				<text class="price">{{ totalPrice }}</text>
			</view>
			<text class="submit" @click="submit">提交订单</text>
		</view>
	</view>
</template>

<script>
	import {
		mapState,
		mapMutations
	} from 'vuex';
	export default {
		data() {
			return {
				isShow: true,
				items: [{
						num: -1,
						text: '无需购物袋',
						price: 0
					},
					{
						num: 0,
						text: '小(0.25元)/个',
						price: 0.25
					},
					{
						num: 0,
						text: '中(0.50元)/个',
						price: 0.50
					},
					{
						num: 0,
						text: '大(0.75元)/个',
						price: 0.75
					}
				],
				bagPrice: 0,

			}
		},
		computed: {
			...mapState('user', ['token', 'userinfo']),
			...mapState('cart', ['mycart']),
			totalPrice() {
				const total = this.mycart.reduce((sum, item) => sum + item.price * item.buynumber, 0);
				const amount = total + this.bagPrice;
				return amount.toFixed(2);
			}
		},
		onNavigationBarButtonTap(e) {
			console.log(e);
		},
		onShow() {
			if (this.mycart.length === 0) {
				// 跳转到订单列表页面
				this.$api.msg('订单已提交');
				return uni.navigateBack();
			}
		},
		onLoad() {

			if (!this.token) {
				this.$api.msg('请先登录');
				setTimeout(function() {
					return uni.navigateTo({
						url: '/pages/public/login'
					})
				}, 500)
			}


		},
		methods: {
			...mapMutations('cart', ['clearCart']),
			numberChange(index, event) {
				// 更新 items 数组中对应项的数量
				this.items[index].num = event;
				// 重新计算购物袋价格
				this.calculateBagPrice();
			},
			calculateBagPrice() {
				this.bagPrice = this.items.reduce((sum, item) => {
					return sum + item.num * item.price;
				}, 0);

			},
			genTradeNo() {
				const date = new Date();
				let tradeNo = date.getFullYear().toString() + (date.getMonth() + 1).toString() +
					date.getDate().toString() + date.getHours().toString() + date.getMinutes().toString() +
					date.getSeconds().toString() + date.getMilliseconds().toString();
				for (let i = 0; i < 5; i++) //5位随机数，用以加在时间戳后面。
				{
					tradeNo += Math.floor(Math.random() * 10);
				}
				return tradeNo;
			},

			deleteCart() {
				// 获取购物车中所有商品ID
				const itemIds = this.mycart.map(item => item.id);
				// 清空购物车
				this.$ajax.post(`cart/deleteIDS`, itemIds, {
					headers: {
						'Content-Type': 'application/json'
					}
				}).then((res) => {
					console.log(res);
					if (res.success) {
						this.clearCart();


					} else {
						// this.$api.msg(res.message);
						return uni.navigateTo({
							url: '/pages/cart/cart'
						});
					}
				}).catch(err => {
					console.log(err);
				})
			},
			createOrder(status) {
				// 订单编号
				const orderId = this.genTradeNo();
				const userId = this.userinfo.id;
				// 处理购物袋信息
				const bagInfo = this.items
					.filter(item => item.num > 0 && item.num !== -1)
					.map(item => `${item.text.split('(')[0]}(${item.num})`)
					.join(', ');
				// const orders = this.mycart.map(item => ({
				// 	orderid: orderId + Math.floor(Math.random() * 10000),
				// 	tablename: bagInfo, // 添加购物袋信息到 tablename
				// 	userid: userId,
				// 	goodid: item.goodid,
				// 	goodname: item.goodname,
				// 	picture: item.picture,
				// 	buynumber: item.buynumber,
				// 	discountprice: item.price,
				// 	price: item.price,
				// 	total: this.totalPrice,
				// 	discounttotal: this.totalPrice,
				// 	type: 1,
				// 	address: '超市',
				// 	status: status,
				// }));

				const cartItems = this.mycart.map(item => ({
					goodid: item.goodid, // 商品ID
					buynumber: item.buynumber, // 购买数量
					price: item.price, // 商品单价
					goodname: item.goodname, // 商品名称
					picture: item.picture, // 商品图片
				}))

				const orderData = {
					orderid: orderId,
					tablename: bagInfo, // 添加购物袋信息到 tablename
					userid: userId,
					items: cartItems,
					total: this.totalPrice,
					discounttotal: this.totalPrice,
					buynumber: this.mycart.reduce((sum, item) => sum + item.buynumber, 0), // 购买数量
					type: 1,
					address: '超市',
					status: status
				};

				const result = this.$ajax.post(`orders/add`, orderData, {
					headers: {
						'Content-Type': 'application/json'
					}
				}).then(res => {

					if (res.success) {
						return new Promise((resolve, reject) => {
							resolve({
								orderId: orderId,
								userid: userId,
								isPay: true
							});
						})

					} else {
						this.$api.msg(res.message);
						return new Promise((resolve, reject) => {
							resolve({
								orderId: orderId,
								userid: userId,
								isPay: false
							});
						})
					}
				});
				return result;
			},
			async confirm() {
				const {
					isPay,
					orderId,
					userid
				} = await this.createOrder('已支付');
				// 跳转到订单详情页

				if (isPay) {
					await this.deleteCart();
					this.$api.msg('支付成功');
					this.$refs.passInput.remove();
					return uni.navigateTo({
						url: '/pages/order/shipment?orderid=' + orderId
					});
				} else {
					this.$api.msg('支付失败');
					this.$refs.passInput.remove();
					return uni.navigateTo({
						url: '/pages/order/order?state=0'
					})
				}
				
			},
			async close() {
				const {
					isPay,
					orderId,
					userid
				} = await this.createOrder('未支付');

				if (isPay) {
					await this.deleteCart();
				}

				this.$api.msg('用户取消支付');
				this.$refs.passInput.close();
				return uni.navigateTo({
					url: '/pages/order/order?state=0'
				})
			},
			submit() {
				// 判断是否确认支付
				uni.showModal({
					title: '确认支付',
					content: '是否确认支付',
					success: async res => {
						if (res.confirm) {
							this.isShow = false;
							this.$refs.passInput.open();
						}
						if (res.cancel) {
							this.close();
						}
					}
				});
			},

		}
	}
</script>

<style lang="scss">
	page {
		background: $page-color-base;
		padding-bottom: 100upx;
	}

	.address-section {
		padding: 30upx 0;
		background: #fff;
		position: relative;

		.order-content {
			display: flex;
			align-items: center;
		}

		.icon-shouhuodizhi {
			flex-shrink: 0;
			display: flex;
			align-items: center;
			justify-content: center;
			width: 90upx;
			color: #888;
			font-size: 44upx;
		}

		.cen {
			display: flex;
			flex-direction: column;
			flex: 1;
			font-size: 28upx;
			color: $font-color-dark;
		}

		.name {
			font-size: 34upx;
			margin-right: 24upx;
		}

		.address {
			margin-top: 16upx;
			margin-right: 20upx;
			color: $font-color-light;
		}

		.icon-you {
			font-size: 32upx;
			color: $font-color-light;
			margin-right: 30upx;
		}

		.a-bg {
			position: absolute;
			left: 0;
			bottom: 0;
			display: block;
			width: 100%;
			height: 5upx;
		}
	}

	.goods-section {
		margin-top: 16upx;
		background: #fff;
		padding-bottom: 1px;

		.g-header {
			display: flex;
			align-items: center;
			height: 84upx;
			padding: 0 30upx;
			position: relative;
		}

		.logo {
			display: block;
			width: 50upx;
			height: 50upx;
			border-radius: 100px;
		}

		.name {
			font-size: 30upx;
			color: $font-color-base;
			margin-left: 24upx;
		}

		.g-item {
			display: flex;
			margin: 20upx 30upx;

			image {
				flex-shrink: 0;
				display: block;
				width: 140upx;
				height: 140upx;
				border-radius: 4upx;
			}

			.right {
				flex: 1;
				padding-left: 24upx;
				overflow: hidden;
			}

			.title {
				font-size: 30upx;
				color: $font-color-dark;
			}

			.spec {
				font-size: 26upx;
				color: $font-color-light;
			}

			.price-box {
				display: flex;
				align-items: center;
				font-size: 32upx;
				color: $font-color-dark;
				padding-top: 10upx;

				.price {
					margin-bottom: 4upx;
				}

				.number {
					font-size: 26upx;
					color: $font-color-base;
					margin-left: 20upx;
				}
			}

			.step-box {
				position: relative;
			}
		}
	}

	.yt-list {
		margin-top: 16upx;
		background: #fff;
	}

	.yt-list-cell {
		display: flex;
		align-items: center;
		padding: 10upx;
		line-height: 70upx;
		position: relative;

		&.cell-hover {
			background: #fafafa;
		}

		&.b-b:after {
			left: 30upx;
		}

		.cell-icon {
			height: 32upx;
			width: 32upx;
			font-size: 22upx;
			color: #fff;
			text-align: center;
			line-height: 32upx;
			background: #f85e52;
			border-radius: 4upx;
			margin-right: 12upx;

			&.hb {
				background: #ffaa0e;
			}

			&.lpk {
				background: #3ab54a;
			}
		}

		.cell-more {
			align-self: center;
			font-size: 24upx;
			color: $font-color-light;
			margin-left: 8upx;
			margin-right: -10upx;
		}

		.cell-tit {
			flex: 1;
			font-size: 26upx;
			color: $font-color-light;
		}

		.cell-tip {
			flex: 3;
			font-size: 26upx;
			color: $font-color-dark;

			&.disabled {
				color: $font-color-light;
			}

			&.active {
				color: $base-color;
			}

			&.red {
				color: $base-color;
			}
		}

		&.desc-cell {
			.cell-tit {
				max-width: 90upx;
			}
		}

		.desc {
			flex: 1;
			font-size: $font-base;
			color: $font-color-dark;
		}
	}

	/* 支付列表 */
	.pay-list {
		padding-left: 40upx;
		margin-top: 16upx;
		background: #fff;

		.pay-item {
			display: flex;
			align-items: center;
			padding-right: 20upx;
			line-height: 1;
			height: 110upx;
			position: relative;
		}

		.icon-weixinzhifu {
			width: 80upx;
			font-size: 40upx;
			color: #6bcc03;
		}

		.icon-alipay {
			width: 80upx;
			font-size: 40upx;
			color: #06b4fd;
		}

		.icon-xuanzhong2 {
			display: flex;
			align-items: center;
			justify-content: center;
			width: 60upx;
			height: 60upx;
			font-size: 40upx;
			color: $base-color;
		}

		.tit {
			font-size: 32upx;
			color: $font-color-dark;
			flex: 1;
		}
	}

	.footer {
		position: fixed;
		left: 0;
		bottom: 0;
		z-index: 995;
		display: flex;
		align-items: center;
		width: 100%;
		height: 90upx;
		justify-content: space-between;
		font-size: 30upx;
		background-color: #fff;
		z-index: 998;
		color: $font-color-base;
		box-shadow: 0 -1px 5px rgba(0, 0, 0, 0.1);

		.price-content {
			padding-left: 30upx;
		}

		.price-tip {
			color: $base-color;
			margin-left: 8upx;
		}

		.price {
			font-size: 36upx;
			color: $base-color;
		}

		.submit {
			display: flex;
			align-items: center;
			justify-content: center;
			width: 280upx;
			height: 100%;
			color: #fff;
			font-size: 32upx;
			background-color: $base-color;
		}
	}

	/* 优惠券面板 */
	.mask {
		display: flex;
		align-items: flex-end;
		position: fixed;
		left: 0;
		top: var(--window-top);
		bottom: 0;
		width: 100%;
		background: rgba(0, 0, 0, 0);
		z-index: 9995;
		transition: 0.3s;

		.mask-content {
			width: 100%;
			min-height: 30vh;
			max-height: 70vh;
			background: #f3f3f3;
			transform: translateY(100%);
			transition: 0.3s;
			overflow-y: scroll;
		}

		&.none {
			display: none;
		}

		&.show {
			background: rgba(0, 0, 0, 0.4);

			.mask-content {
				transform: translateY(0);
			}
		}
	}

	/* 优惠券列表 */
	.coupon-item {
		display: flex;
		flex-direction: column;
		margin: 20upx 24upx;
		background: #fff;

		.con {
			display: flex;
			align-items: center;
			position: relative;
			height: 120upx;
			padding: 0 30upx;

			&:after {
				position: absolute;
				left: 0;
				bottom: 0;
				content: '';
				width: 100%;
				height: 0;
				border-bottom: 1px dashed #f3f3f3;
				transform: scaleY(50%);
			}
		}

		.left {
			display: flex;
			flex-direction: column;
			justify-content: center;
			flex: 1;
			overflow: hidden;
			height: 100upx;
		}

		.title {
			font-size: 32upx;
			color: $font-color-dark;
			margin-bottom: 10upx;
		}

		.time {
			font-size: 24upx;
			color: $font-color-light;
		}

		.right {
			display: flex;
			flex-direction: column;
			justify-content: center;
			align-items: center;
			font-size: 26upx;
			color: $font-color-base;
			height: 100upx;
		}

		.price {
			font-size: 44upx;
			color: $base-color;

			&:before {
				content: '￥';
				font-size: 34upx;
			}
		}

		.tips {
			font-size: 24upx;
			color: $font-color-light;
			line-height: 60upx;
			padding-left: 30upx;
		}

		.circle {
			position: absolute;
			left: -6upx;
			bottom: -10upx;
			z-index: 10;
			width: 20upx;
			height: 20upx;
			background: #f3f3f3;
			border-radius: 100px;

			&.r {
				left: auto;
				right: -6upx;
			}
		}
	}

	.segmented-control /deep/ .segmented-control__text {
		font-size: 24rpx !important;
	}
</style>